fixes #85977

src/vs/workbench/contrib/debug/browser/debugConfigurationManager.ts

@@ -80,7 +80,7 @@ export class ConfigurationManager implements IConfigurationManager {
 		const previousSelectedRoot = this.storageService.get(DEBUG_SELECTED_ROOT, StorageScope.WORKSPACE);
 		const previousSelectedLaunch = this.launches.filter(l => l.uri.toString() === previousSelectedRoot).pop();
 		this.debugConfigurationTypeContext = CONTEXT_DEBUG_CONFIGURATION_TYPE.bindTo(contextKeyService);
-		if (previousSelectedLaunch) {
+		if (previousSelectedLaunch && previousSelectedLaunch.getConfigurationNames().length) {
 			this.selectConfiguration(previousSelectedLaunch, this.storageService.get(DEBUG_SELECTED_CONFIG_NAME_KEY, StorageScope.WORKSPACE));
 		} else if (this.launches.length > 0) {
 			const rootUri = historyService.getLastActiveWorkspaceRoot();